Mechanism for triggering an eject device of a disk player

ABSTRACT

A trigger mechanism is provided for triggering an eject device of an electronic equipment with a front panel door. The eject device ejects a tray device, movably seated within the space of the electronic equipment, out of the electronic equipment when triggered. The trigger mechanism cooperates with the front panel door to trigger the eject device. The trigger mechanism works to trigger the eject device when a predetermined displacement of the front panel door form a normally closed position takes place. According to the invention, user can eject the tray device of the electronic equipment only by pressing the front panel door of the electronic equipment such that mistaken pressing of another functional button set on the front panel of the electronic equipment and possible cut of user&#39;s hand can be prevented. The trigger mechanism is composed of several simply mechanical components replacing a conventional trigger mechanism via a button such that manufacture cost of the electronic equipment can be reduced.

FIELD OF INVENTION

The invention relates to a trigger mechanism cooperating with a frontpanel door of an electronic equipment for triggering an eject device ofthe electronic equipment to eject a tray device, which movably seatswithin the electronic equipment, out of the electronic equipment. Theelectronic equipment is a popular disk player, e.g., a compact diskplayer, a CD ROM player, a CD R/W ROM player, a laser disk player, a VCDplayer or a DVD player.

BACKGROUND OF INVENTION

As shown in FIG. 1, a popular electronic equipment 10, such as a compactdisk player, a CD ROM player, a CD R/W ROM player, a laser disk player,a VCD player or a DVD player, in general, has an input device of traydevice 11 for accommodating the disk in which a huge amount ofinformation is stored. The tray device 11 movably seats within the spaceof the electronic equipment 10. Typically, the electronic equipment 10is equipped with an eject device (not shown) such as an electricallydriven step motor for ejecting the tray device 11 out of the electronicequipment 10.

Also shown in FIG. 1, the electronic equipment 10, in general, has afront panel 101 and a front panel door 102. The front panel door 102 ofthe electronic equipment 10 is engaged with the front panel 101 of theelectronic equipment 10 to pivotally close and open. The electricallydriven eject device of the electronic equipment 10, in general, istriggered by pressing an eject button 103 set on the front panel 101.However, this usually causes mistaken pressing of another functionalbutton and possible cut of user's hand by sharp edges of the tray device11. This also causes inconvenience for an electronic equipment with atray device displaced erectly.

Accordingly, to solve the problems mentioned above, this presentinvention provides a trigger mechanism of an eject device of anelectronic equipment replacing the convention trigger mechanism via abutton. In particular, the trigger mechanism of the invention cooperateswith the front panel door of the electronic equipment, and is composedof several simply mechanical components. When using an electronicequipment according to the invention, user can eject the tray device ofthe electronic equipment only by pressing the front panel door of theelectronic equipment such that mistaken pressing of another functionalbutton set on the front panel of the electronic equipment and possiblecut of user's hand can be prevented. By the simply mechanical mechanismreplacing the conventional button for triggering the eject device of theelectronic equipment, manufacture cost of the electronic equipment canbe reduced. Obviously, the trigger mechanism of the invention alsoprovides convenience for an electronic equipment with a tray deviceplaced erectly.

U.S. Pat. No. 5,517,478 is to provide a disk player with capability ofloading and ejecting a disc into and out of the disk player in responseto the closing and opening operations of a lid. However, since the diskplayer of the prior art utilizes a mechanical eject device rather thanan electrically driven eject device, it is obvious that the triggeringof the eject device of the disk player according the prior art is notadapted for a disk player with an electrically driven eject device.

U.S. Pat. No. 5,134,603 is to provide a disk player for inserting andextracting a disk. The disk player includes a movable member and astationary housing member. The movable member is capable of moving intoand out of the stationary housing member in a direction. The movablemember is provided with two nose-shaped elements that are spaced fromone another. A single switch mounted on the stationary housing member isactuated by the nose-shaped elements when the movable member movesin-and-out of the stationary housing member. The in-and-out movement ofthe movable member is made dependent on the states of the single switch.However, in the prior art, the practical operation for triggering theout-of movement of the movable member is to pull out the stationaryhousing member to a predetermined position by hand. Therefore, the diskplayer possibly cut of user's hand when operated.

SUMMARY OF INVENTION

An objective of the invention is to provide a trigger mechanism fortriggering an eject device of an electronic equipment. When triggered,the eject device ejects a tray device, which movably seats within theelectronic equipment, out of the electronic equipment. The electronicequipment is a popular electronic equipment such as a compact diskplayer, a CD ROM player, a CD R/W ROM player, a laser disk player, a VCDplayer or a DVD player.

According to the invention, the trigger mechanism cooperates with thefront panel door of the electronic equipment. The trigger mechanismworks to trigger the eject device when a predetermined displacement ofthe front panel door of the electronic equipment form a normally closedposition takes place. The trigger mechanism of the invention can preventfrom mistaken pressing of another functional button set on the frontpanel and possible cut of user's hand when user triggers the ejectdevice by hand. The trigger mechanism of the invention also providesconvenience for an electronic equipment with a tray device displacederectly.

According to the invention, the trigger mechanism is composed of severalsimply mechanical components replacing the conventional triggermechanism via a button. Therefore, the trigger mechanism of theinvention can reduce manufacture cost of the electronic equipment.

The advantage and spirit of the invention may be understood by thefollowing recitations together with the appended drawings.

BRIEF DESCRIPTION OF THE APPENDED DRAWINGS

FIG. 1A and FIG. 1B show a general triggering mechanism for triggeringan eject device of an electronic equipment by a button set on the frontpanel of the electronic equipment to eject a tray device of theelectronic equipment out of the electronic equipment.

FIG. 2A discloses the essentials and location of the trigger mechanismin accordance with a first embodiment of the invention.

FIG. 2B is a sectional view showing how the trigger mechanism of FIG. 2Acooperates with the front panel door of the electronic equipment.

FIG. 3A discloses the essentials and location of the trigger mechanismin accordance with a second embodiment of the invention.

FIG. 3B is a sectional view showing how the trigger mechanism of FIG. 3Acooperates with the front panel door of the electronic equipment.

FIG. 4A discloses the essentials and location of the trigger mechanismin accordance with a third embodiment of the invention.

FIG. 4B is a sectional view showing how the trigger mechanism of FIG. 4Acooperates with the front panel door of the electronic equipment.

FIG. 5A discloses the essentials and location of the trigger mechanismin accordance with a forth embodiment of the invention.

FIG. 5B is an explosive view of the first component disclosed in FIG.5A.

FIG. 5C and FIG. 5D are respectively a sectional view showing how thetrigger mechanism of FIG. 5A cooperates with the front panel door of theelectronic equipment.

DETAILED DESCRIPTION OF THE INVENTION

The invention provides a trigger mechanism for triggering an ejectdevice of a popular electronic equipment, e.g., a CD ROM player, a CDR/W ROM player, a laser disk player, a VCD player or a DVD player. Whentriggered, the eject device ejects a tray device, which movably seatswithin the electronic equipment, out of the electronic equipment. Inparticular, the trigger mechanism is composed of several simplymechanical components replacing the convention trigger mechanism via abutton, and cooperates with a front panel door of the electronicequipment. In practical application, user presses the front panel doorby hand to trigger the eject device. Therefore, the trigger mechanism ofthe invention can prevent from mistaken pressing of another functionalbutton set on the front panel and possible cut of user's hand by thequick ejected tray device. Moreover, the trigger mechanism of theinvention can reduce manufacture cost of the electronic equipment. Thetrigger mechanism of the invention also provides convenience for anelectronic equipment with a tray device displaced erectly. Severalpreferred embodiments of the invention are disclosed as follows.

Referring to FIG. 2, a first embodiment of the invention is describedillustratively. As shown in FIG. 2A, the essentials and location of thetrigger mechanism 22 in accordance with the first embodiment of theinvention is disclosed. The trigger mechanism 22 is provided fortriggering an eject device (not shown), such as a electrically drivenstep motor, of an electronic equipment 20 with a front panel 201 andfront panel door 202. The eject device ejects a tray device 21, whichmovably seats within the electronic equipment 20, out of the electronicequipment 20 when triggered. The front panel door 202 of the electronicequipment 20 is engaged with the front panel 201 of the electronicequipment 20 to pivotally close and open. As shown in FIG. 2A, thetrigger mechanism 22 includes a first component 221 and a secondcomponent 222 electrically connected to the eject device, respectively.The second component 222 is actuated to contact the first component 221in response to a minor tilt displacement of the front panel door 202from a vertical position, i.e., a normally closed position. The ejectdevice is electrically contacted and triggered when the second component222 contacts the first component 221.

In the first embodiment of the invention, the cooperation between thefront panel door 202 and the trigger mechanism 22 may be understood byFIG. 2B. As shown in FIG. 2B, the first component 221 is an I-shapedcomponent and mainly includes a first part 2211 set on the rear side ofthe front panel 201 and a second part 2212 away form the rear side ofthe front panel 201. The second component 222 is an inverted-L-shapedcomponent and mainly includes a first part 2221 set on the rear side ofthe front panel 201 and a second part 2222 away from the rear side ofthe front panel 201 and extending through between the second part 2212of the first component 221 and the front panel 201 and to the rear sideof the front panel door 202. When the minor tilt displacement of thefront panel door 202 from the vertical position takes place, the secondpart 2222 of the second component 222 is actuated to contact the secondpart 2212 of the first component 221 to trigger the eject device. In apreferred embodiment, the first component 221 and the second component222 of the trigger mechanism 22 are a piece-shaped component,respectively. The first component 221 and the second component 222 areformed by a conductive material such as a metal material or a conductiveplastic.

Referring to FIG. 3, a second embodiment of the invention is describedillustratively. As shown in FIG. 3A, the essentials and location of thetrigger mechanism 32 in accordance with the second embodiment of theinvention is disclosed. The trigger mechanism 32 is provided fortriggering an eject device (not shown) of an electronic equipment 30with a front panel 301. The eject device ejects a tray device 31, whichmovably seats within the electronic equipment 30, out of the electronicequipment 30 when triggered. In particular, a front panel door 311 isattached to the tray device 31 such that the front panel door 311 istogether with the tray device 31 to move. This design is widely employedin a disk player. As shown in FIG. 3A, the trigger mechanism 32 includesa first component 321 and a second component 322 electrically connectedto the eject device, respectively. The second component 322 is actuatedto contact the first component 321 in response to a minor horizontaldisplacement of the front panel door 311 from a normally closedposition. The eject device is electrically contacted and triggered whenthe second component 322 contacts the first component 321.

In the second embodiment of the invention, the cooperation between thefont panel door 311 and the trigger mechanism may be understood by FIG.3B. As shown in FIG. 3B, the first component 321 is an I-shapedcomponent and mainly includes a first part 3211 set on the rear side ofthe front panel 301 and a second part 3212 away form the rear side ofthe front panel 301. The second component 322 is an inverted-L-shapedand mainly includes a first part 3221 set on the rear side of the frontpanel 301 and a second part 3222 away from the rear side of the frontpanel 301 and extending through between the second part 3212 of thefirst component 321 and the front panel 301 and to the rear side of thefront panel door 311. When the minor horizontal displacement of thefront panel door 311 from the normally closed position takes place, thesecond part 3222 of the second component 322 is actuated to contact thesecond part 3212 of the first component 321 to trigger the eject device.In a preferred embodiment, the first component 321 and the secondcomponent 322 of the trigger mechanism 32 are a piece-shaped component,respectively. The first component 321 and the second component 322 areformed by a conductive material such as a metal material or a conductiveplastic.

Referring to FIG. 4, a third embodiment of the invention is describedillustratively. As shown in FIG. 4A, the essentials and location of thetrigger mechanism 42 in accordance with the third embodiment of theinvention is disclosed. The trigger mechanism 42 is provided fortriggering an eject device (not shown) of an electronic equipment 40with a front panel 401 and front panel door 402. The eject device ejectsa tray device 41, which movably seats within the electronic equipment40, out of the electronic equipment 40 when triggered. The front paneldoor 402 of the electronic equipment 40 is engaged with the front panel401 of the electronic equipment 40 to pivotally close and open. As shownin FIG. 4A, the trigger mechanism 42 includes a first component 421 anda second component 422 electrically connected to the eject device,respectively. The trigger mechanism 42 also includes a third component423 attached to the front panel door 402 of the electronic equipment 40.When the front panel door 402 is pressed to take place a minor tiltdisplacement of from a vertical position, i.e., a normally closedposition, the second component 422 is actuated to contact the firstcomponent 421. Thereby, the eject device is electrically contacted andtriggered. The third component 423 extends from the rear side of thefront panel door 402 such that the third component 423 is together withthe front panel door 402 to rotate in the same rotary direction. Thethird component 423 actuates the second component 422 to contact thefirst component 421 when the minor tilt displacement of the front paneldoor 402 form the vertical position takes place.

In the third embodiment of the invention, the cooperation between thefont panel door 402 and the trigger mechanism 42 may be understood byFIG. 4B. As shown in FIG. 4B, the first component 421 is aninverted-L-shaped component and set on the rear side of the front panel401. The second component 422 is an I-shaped component, and mainlyincludes a first part 4221 set on the rear side of the front panel 401and a second part 4222 away from the rear side of the front panel 401and extending between the first component 421 and the third component423. When the minor tilt displacement of the front panel door 402 fromthe vertical position takes place, the second part 4222 of the secondcomponent 422 is actuated by the third component 423 to contact thefirst component 421 to trigger the eject device. In a preferredembodiment, the first component 421 and the second component 422 of thetrigger mechanism 42 are a piece-shaped component, respectively. Thefirst component 421 and the second component 422 are formed by aconductive material such as a metal material or a conductive plastic.The third component 423 of the trigger mechanism 42 is a curve-shapedarm component.

Referring to FIG. 5, a forth embodiment of the invention is describedillustratively. As shown in FIG. 5A, the essentials and location of thetrigger mechanism 52 in accordance with the forth embodiment of theinvention is disclosed. The trigger mechanism 52 is provided fortriggering an eject device (not shown) of an electronic equipment 50with a front panel 501 and front panel door 502. When triggered, theeject device ejects a tray device 51, which movably seats within theelectronic equipment 50, out of the electronic equipment 50. The frontpanel door 502 of the electronic equipment 50 is engaged with the frontpanel of the electronic equipment 50 to pivotally close and open. Asshown in FIG. 5A, the trigger mechanism 52 includes a first component521, a second component 522, and a switch device 523 for selectivelytriggering the eject device. The second component 522 extends from therear side of the front panel door 502 such that the second component 522is together with the front panel door 502 to rotate in the same rotarydirection. The second component 522 rotates and actuates the firstcomponent 521 to switch on the switch device 523 in response to a minortilt displacement of the front panel door 502 form the verticalposition. In preferred embodiment, the first component 521 includes abent arm element 5211 and a support 5212 with a hinge pin, and thesecond component 522 is a curve-shaped arm component, as shown in FIG.5B. The support 5212 is fixed on the rear side of the front panel 501 ofthe electronic equipment 50. The bent arm element 5211 is pivotallyconnected to the hinge pin of the support 5212 such that the bent armelement 5211 is allowed to rotate in a predetermined range.

In the forth embodiment of the invention, the cooperation between thefont panel door 502 and the trigger mechanism 52 may be understood byFIG. 5C and FIG. 5D. The first component 521 is set on the rear side ofthe front panel 501. When the minor tilt displacement of the front paneldoor 502 takes place, the second component 522 actuates a first end 5213of the bent arm element 5211 to move in a first direction (the directiontoward the rear side of the front panel 501), as shown in FIG. 5C. Inthe same time, a second end 5214 of the bent arm element 5211 isactuated to move in a second direction (the direction away from the rearside of the front panel 501), opposite to the first direction, to switchon the switch device 523, as shown in FIG. 5D. In a preferredembodiment, the switch device 523 is a simple switch, for instance,composed of a conductive film 5231 and a point 5232 electricallyconnected to the eject device, respectively, as shown in FIG. 5D. Whenthe conductive film 5231 contacts the point 5232, the eject device istriggered.

The above details of the preferred embodiments of the inventionaforesaid are illustrative rather than limiting. For instance, thecomponents consisting of the trigger mechanism according to theinvention may be replaced equivalently by other forms which are obviousto persons skillful in the arts. Accordingly, any equivalentmodifications, substitutes, alterations or changes to the preferredembodiment without departing form the spirit of the invention are likelyto persons ordinary skills in the arts, and are still within theintended scope of the protection of the invention which is defined bythe following claims and their equivalences.

What is claimed is:
 1. A mechanism for triggering an eject device of anelectronic equipment, the eject device ejecting a tray device movablyseated within the electronic equipment out of the electronic equipmentwhen triggered, wherein the electronic equipment has a front paneldefining a rear side and a front panel door defining a rear side, themechanism comprising: a first means electrically connected to the ejectdevice, comprising: a first part set on the rear side of the frontpanel; and a second part away from the rear side of the front panel; asecond means electrically connected to the eject device, comprising: afirst part set on the rear side of the front panel; and a second partextending through between the second part of the first means and thefront panel and to the rear side of the front panel door; wherein, thesecond part of the second means is actuated to contact the second partof the first means to trigger the eject device when a displacement ofthe front panel door takes place.
 2. The mechanism of claim 1, whereinthe eject device is an electrically driven eject device.
 3. Themechanism of claim 2, wherein the first means and the second means arerespectively formed by a conductive material.
 4. The mechanism of claim3, wherein the first means and the second means are a piece-shapedcomponent respectively.